and steve brown in ohio, a state that many say is a must-win for either candidate. steve. >> reporter: hey there, uma, yeah, basically two, you can break ohio down into two contests, a contest that's leading up to election day and that's the early vote and there's the contest that goes on on election day and the regular voting and the early vote is the contest that's going on right now. and we're in the final hour of early voting here on saturday, it ran into 8 until 2, or runs from 8 until 2 here, and this is a very important portion of the equation, for the obama campaign. they have really made this a center piece of their particular strategy and had a lot of help in the persons of travelling here to the state of ohio, to help them get that vote out, to try and gin up the excitement, if you will, a little bit about getting those votes done early. richard trumka, the president of the afl-cio was speaking at an event in columbus today, talking about the importance of getting people out to vote. here is why. the obama campaign made it a sfr piece because they believe